This first-season entry did not feature any bug-eyed aliens, familiar guest stars, or the Dr.Smith/Will/Robot triumvirate that would overrun the series for most of its three-year run. "The Oasis" was as true a "survival story" as Irwin Allen's sci-fi/fantasy could possibly give.
During a drought, Dr. Smith (Jonathan Harris) decides to use much of the family's dwindling water supply to take a shower because he "feels very icky." Thus, the family must go in search of a new reservoir of fresh water. As they walk through a dry river basin, Dr. Smith complains about being tired and returns to the Jupiter 2. In the meantime, a discovery of an alien fruit is made and Dr. Robinson (Guy Williams) decides to take it back and run tests to see if it is suitable for human consumption.
That night while the family gathers in the galley to discuss the day's events, Maureen (June Lockhart) realizes that Dr. Smith is nowhere to be found. She goes to the upper deck and finds him gorging on the untested fruit. Running frantically outside the ship, she knocks the plant out of his mouth, much to his surprise, telling him that the fruit has not been tested.
The rest of the family comes outside and also adds its criticism of Smith's haste. Unfortunately, the always-ready-to-go-off-the-deep-end Smith thinks that the family deliberately left the fruit for him to eat, hoping that it would cause some serious, or possible fatal, illness.
Smith screams and goes to his cabin. While there, his imagination takes the best of him and he is determined to seek revenge on the others, prior to his "demise." Leaving the ship in the wee hours of the night, he takes the last remaining fuel cylinder on the water conversion unit, thus, leaving the family in greater dire straits.
As they search for Smith and the cylinder, Will (Billy Mumy), Don (Mark Goddard), and John find him, only now, due to a metamorphosis brought on by the consumption of the fruit, he is as tall as a two-story building.
Maureen convinces Smith to return to the ship and eventually, through the intervention of a convenient rain storm, Smith returns to his normal state.
Inasmuch as it is centered squarely on the family, each of the actors has a fair amount of screen time, including the rarely used Marta Kristen ("Judy").
During a drought, Dr. Smith (Jonathan Harris) decides to use much of the family's dwindling water supply to take a shower because he "feels very icky." Thus, the family must go in search of a new reservoir of fresh water. As they walk through a dry river basin, Dr. Smith complains about being tired and returns to the Jupiter 2. In the meantime, a discovery of an alien fruit is made and Dr. Robinson (Guy Williams) decides to take it back and run tests to see if it is suitable for human consumption.
That night while the family gathers in the galley to discuss the day's events, Maureen (June Lockhart) realizes that Dr. Smith is nowhere to be found. She goes to the upper deck and finds him gorging on the untested fruit. Running frantically outside the ship, she knocks the plant out of his mouth, much to his surprise, telling him that the fruit has not been tested.
The rest of the family comes outside and also adds its criticism of Smith's haste. Unfortunately, the always-ready-to-go-off-the-deep-end Smith thinks that the family deliberately left the fruit for him to eat, hoping that it would cause some serious, or possible fatal, illness.
Smith screams and goes to his cabin. While there, his imagination takes the best of him and he is determined to seek revenge on the others, prior to his "demise." Leaving the ship in the wee hours of the night, he takes the last remaining fuel cylinder on the water conversion unit, thus, leaving the family in greater dire straits.
As they search for Smith and the cylinder, Will (Billy Mumy), Don (Mark Goddard), and John find him, only now, due to a metamorphosis brought on by the consumption of the fruit, he is as tall as a two-story building.
Maureen convinces Smith to return to the ship and eventually, through the intervention of a convenient rain storm, Smith returns to his normal state.
Inasmuch as it is centered squarely on the family, each of the actors has a fair amount of screen time, including the rarely used Marta Kristen ("Judy").